Season two centers on Jimmy Parerra (O’Quinn), a Chicago cop who, 18 years ago, inspired by Frank Serpico’s similar act in New York, blew the whistle on police corruption in Chicago. That resulted in sending his own father-in-law, Bud O’Rourke (Keach), the chief of detectives, to federal prison for life.

Season two begins as Bud is getting out of prison, intent on revenge. As in season one, each episode takes place in one location — in this case, an Irish bar in Chicago — and focuses on a conversation between two characters intimately involved in Jimmy and Bud’s story.

Just like in its first season, one character from the previous episode moves into the next episode and will be paired with a new character. However, season two will expand the story beyond the Irish bar and will also take place in the offices conducting the FBI sting operation. Bud's visitors at the state penitentiary before his release will also be depicted.

Bauer will play Jimmy's ex-partner, Richie. Wilson is Jimmy's ex-wife and Bud’s daughter, Shelly; Snow is Jimmy’s daughter, Katie; Fugit is Jimmy’s son, Paulie; Koechner is Paulie's cop partner, Phil. Flockhart will play Ellen, the new face of the mob; McCormack is FBI agent Ken; and Burton is Ken's boss, Vera.

Season two of Full Circle will be written by Keith Huff (Mad Men, House of Cards and ABC's upcoming John Ridley drama American Crime). His play, A Steady Rain,starring Hugh Jackman and Daniel Craig, recently debuted on Broadway. Full Circle is executive produced and directed by Nick Hamm (Rogue) for Momentum TV. Huff will also exec produce the series.